Polarized-neutron study of one-dimensional magnetic response under magnetic field in the charge-ordered phase of Yb4As3

Citation
K. Iwasa et al., Polarized-neutron study of one-dimensional magnetic response under magnetic field in the charge-ordered phase of Yb4As3, J MAGN MAGN, 226, 2001, pp. 441-443
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
0304-8853 → ACNP
Volume
226
Year of publication
2001
Part
1
Pages
441 - 443
Database
ISI
SICI code
0304-8853(200105)226:<441:PSOOMR>2.0.ZU;2-S
Abstract
One-dimensional (1D) magnetic properties in the charge-ordered phase of Yb4 As3 has been studied by polarized-neutron diffraction, Field-induced magnet ic moment on the 1D Yb3+-ion chain under the field of 7T parallel to the ch ain behaves as that of the spin-1/2 ID Heisenberg antiferromagnet with g(pa rallel to) = 3.0. In the case of the field perpendicular to the chain, we o bserved not only the same behavior of induced moments with g(perpendicular to) similar or equal to 1.2 but also a remarkable enhancement below about 1 0K. The experimentally observed ID magnetization can be reproduced well by the theory based on Dzyaloshinskii-Moriya interaction inducing effective st aggered field by uniformly applied field. (C) 2001 Elsevier Science B.V. Al l rights reserved.